Science

Sunday, 19 July 2026
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

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Graphene
It can be said that graphite is composed of single planes, layers of one carbon atom thick, and graphene, arranged one above the other.
The term “graphene” appeared in the 1960s. In 1961-1962, Hans-Peter Boehm published a study of extre ...
Graphene
Graphene is a desirable material due to its characteristics - the properties and use of graphene in the modern world can completely revolutionize science and technology.
Graphene is currently the thinnest, lightest, and strongest material discovered by man It is an exc ...
Mushrooms
Mushrooms are an essential component of the circulation of matter in nature, they are decomposers - the last link in the food chain.
As the only organisms have the ability to break down lignin and are of great importance in the break ...
Silver
Silver is a chemical element with the symbol Ag, belonging to the group of transition metals (gold, platinum) in the periodic table.
The Latin name for silver is argentum.
Earth
Throughout its history, Earth has had four different atmospheres.
At first, it was surrounded by a primordial atmosphere, which consisted of the remains of proto-plan ...
Snow
Snow accumulates in areas cold enough to remain there seasonally or all the time.
The main areas prone to snow are the Artic, Antarctica, the northern hemisphere, and alpine regions.
Liver
It stores vitamins and minerals.
The vitamins stored in the liver are fat-soluble A, D, E, and K, vitamin B12, copper, and iron. It is responsible for converting vitamin D into an active form.
Nicotine
Larger doses of nicotine cause permanent blocking of the nervous system.
Nicotine binds permanently to nicotinic receptors in nerve cells, disturbing their metabolism. Initi ...
Amber
It has been used in jewelry since 13,000 BC.
Amber
Baltic amber has been found in the tombs of Egyptian pharaohs.
Scientists claim amber was supposed to represent the tears of Ra—the Egyptian god of the Sun.